You're not wrong but I also happen to believe Bitcoin has built-in auto-scaling. Its incentive system does a great job, and fortunately, its scaling is also very straightforward, involving computing and energy. It's very well designed to scale according to demand.
Discussion
That's an interesting take. I am not sure what you mean by built-in auto-scaling, nor about scaling being straightforward, involving computing and energy. No matter how much computing and energy is thrown at it, Bitcoin still only has ~144 blocks a day and 1mb/block, not counting witness data.
Even self-custody Lightning requires ownership of a UTXO currently, and eCash is a custodial solution, not-self custody.
Other options are in the works, and I am sure that incentives will result in even more possible options down the road, as the need arises, but I would still consider that a far cry from "straightforward."